Sawmill set-works.



SAWMILL SET WORKS.

APPLICATION FILED MAY 17. 1900.

7 SHEETS-SHEET 1.

Ch [g e I A m. M5: [5. Q&%W Qm 9,

No. 788,801. PATENTED MAY 2, 1905. W. H. TROUT.

SAWMILL SET WORKS.

APPLICATION PILBD MAY 17. 1900.

mums-sum 2.

a g l liiliillinniiiliillll 3;;um'mmn||||||||||||| 511151111 'M EEWI' II fiweW/(TP- MAW PATENTED MAY 2, 1905.

w. H. TROUT.

SAWMILL s51 WORKS.

APPLIOATION FILED MAY 1'1, 1900.

"Z SHEETS-SHEET 3.

m M ym m l llllllllllllilllllll IIIHHI! illa-il F? a? LE2? W L y g No.788,801. PATENTED MAY 2, 1905. W. H. TROUT.

SAWMILL SET WORKS.

APPLIOATION FILED MAY 17. 1900.

7 snnnwssnnm 4.

Wmhuh n H V I 5 wIIIIIIHIHHIIIINHMI" gal 6056-7, way. 17770 6/7777 fifixPATENTED MAY 2, 1905.

W. H. TROUT.

SAWMILL SET WORKS.

APPLIGATION FILED MAY 1.7, 1900.

7 SHEETS-SHEET 5.

No. 788,801. PATENTED MAY 2, 1905.

W. H. TROUT.

SAWMILL SET WORKS.

APPLICATION FILED MAY 17. 1900.

7 SHEBTBSHEBT 6.

. r T232619 7271: a mmww A, WM

' PATENTED MAY 2. 1905. W. H. TROUT.

SAWMILL SET WORKS.

APPLICATION FILED MAY 17. 1000.

7 SHEETS-SHEET mlllllllllmlllll "MIND-W i i i millnmllllllfifn E -15 EIli wm msm,

I I I 1 I GMT.

NITE STATES Patented May 2, 1905.

PATENT FFICE.

WILLIAM HENRY TROUT, OF MILWAUKEE, XVISOONSIN, ASSIGNOR, BY

MESNE ASSIGNMENTS, OF ONE-HALF TO ALLlS-OHALMERS COM- PANY, ACORPORATION OF NEW JERSEY. T

SAWMILL SET-WORKS SPECIFICATION forming part of Letters Patent No.788,801, dated. May 2, 1905.

Application filed May 17, 1900. Serial No. 17,024.

1'0 11]], wit/mt it may concern:

Be it known that I, WILLIAM HENRY TROUT, a citizen of the United States,residing at Milwaukee, in the county of Milwaukee and State ofWisconsin, have invented certain new and useful Improvements in SawmillSet- Works, of which the following is a specification.

My present invention relates to improvements in power set-works forsawmill-carriages, the construction and advantages of which will behereinafter set "forth, reference beinghad to the accompanying drawings,where1n- Figure 1 is a top plan view of a sawmillcarriage, showing myinvention applied thereto; Fig. 2, a side elevation of the same; Fig. 3,a side elevation of a portion of the apparatus, on an enlarged scale;Fig. 4, a similar view at right angles to Fig. 3; Fig. 5, a longitudinalsectional view Fig. 6, a top plan view; Figs. 7 and 8, sectional viewsshowing the clutch mechanism carried by some of the gears; Fig. 9, a topplan view of the brake and stop mechanism; Fig. 9, a detail show ing theformation of certain portions of the mechanism; Fig. 10, a sectionalview thereof; Fig. 11, a side elevation of one of the operating-levers;Fig. 12, another view of the same; Figs. 13 and 14, top and sideelevations, respectively, showing a modified form of construction; andFig. 15, a top plan view showing a further modified form ofconstruction.

The object of my invention is to provide a construction wherein thepower requisite for actuating the knees orset-works is ever ready to beapplied or brought into use and its action restrained until occasion forits use occurs, when it is released to bring about the result desired.

The invention also has for its object the employment of means forassisting or retarding the power or otherwise controlling it until theparts come to a stop, designed for the purpose of preventing thepossibility of overthrow.

In the drawings I have illustrated several constructions wherein powerto actuate the set-works is stored up, the power being derived from themotion of the carriage during its feed and gig motions, which power maybe given ofl or out when the carriage is standing or in motion. Thestoring of this power may be accomplished in a number of ways, as willbe hereinafter pointed out in detail, a spring or springs being employedas the storage motor.

Referring more particularly to Figs. 1 to 12, inclusive, showing theprincipal embodiment of my invention, A indicates a rack secured to theframing of the mill, over which the carriage traverses, said racks beingmade open, so that no sawdust or the like may aocumulate therein. Withsaid rack there meshes a gear B, comprising an outer toothed ring 0, aplate I), a compression-disk E, and an interposed paper friction F,which bears upon the inner face of the toothed ring. Said gear B thusbuilt up is keyed to a shaft G and under usual circumstances causes thesame to rotate; but should any unusual strain be placed thereon the ringwill slip on the friction and rotate independently of the other portionsof the apparatus. Sh aft Gcarries a pinion H, which meshes with asimilar pinion I, mounted upon a shaft J. The ends of said shai'ts carrypinions 1F and L, both of which mesh with a large gear M. Pinions K andvL are provided with internal clutches, Figs. 7 and 8, comprisingspring-pressed pawls or detents N, adapted and designed to engageshoulders or abutmen ts O, 'lormed in the outer portion of the pinions.Cushions P, preferably of leather, are so placed as to prevent the pawlsfrom making a noise as they are thrown outwardly into engagement. Theclutches in the pinions K and L are rcversely arranged, so that one willrun free while the other .is working. From the connections thus fardescribed it will be seen that both the forward and retrograde movementsof the carriage serve to impart a continuous motion or rotation to thelarge gear M in one direction. Said gear M is mounted loosely upon ashaft Q, carried in suitable hearings on the carriage.

An arm or stud R extends outwardly from the gear and is connected to oneend of a spring S, while the inner end of the spring is connected to adrum T, likewise loosely mounted on the shaft. Said drum is formed witha series of teeth U upon its outer face at one end and also with aninternal frictional bearing-face, in conjunction with which there worksa friction face or member V, carried by a sliding sleeve or drum W. Saiddrum is feathered upon the shaft so as to rotate therewith, but, asstated, may be moved longitudinally thereon. A spring X encircles thedrum W, having one end connected there-- to and the outer end to theframing of the carriage. (See Fig. 6.) The drum is provided with aninternal hub formed with a groove, which is engaged by aninwardly-extending flange Y, formed as a part of a nut Z,rotatablymounted on the shaft. Said nut is provided with circumferentialteeth a and with a threaded projection I), which enters a threadedopening formed in a nut-stand a, secured to the framing of the carriage.

Aleverd is pivoted to one side of the mechanism just described and haspivotally connected thereto a rack e, which engages the teeth a, aroller f, carried by a stud, extending out from the nut-stand bearing onthe upper face of the rack and holding it in contact with the teeth. Thelever also carries a pawl g, pivotally connected thereto, as shown inFig. 12, with a spring 7; to throw the same forward and bring it intoquick engagement with the ratchet-teeth U, formed on the main drum,while at the same time per mitting the lever and the rack to have afurther independent forward movement. This further movement throws thefriction member V out of frictional coaction with the "drum U.

To the inner end of the shaft Q there is secured a beveled pinion j,whichin turn meshes with a bevel-gear 7r, secured upon the setshaft Z. Asecond pinion, m, keyed to a shaft n, also meshes with the gear 76. Saidshaft n is carried by a suitable stand or column 0, and to the up er endof said shaft is secured a friction pul ey or wheel p, having combinedtherewith a toothed or spurred wheel g, the two rotating as one.

About the friction-wheel p there is passed a flexible steel band orstrap r, having one end thereof attached to a column s, extendingupwardly and over the friction and spur wheel. The other end of the bandhas a rack t secured thereto, which meshes with a pinion u, keyed to ashaft 12, mounted in the column 8. To the lower end of said shaft 2) isattached a handle w, extending forwardly therefrom to each side, as isclearly indicated in Figs. 1, 2, and 3.

The upper end of the shaft n carries an indicating and stop lever 00,loosely mounted thereon, having pivoted to its outer end a locking leveror handle y, which is adapted to be brought into engagement with theteeth formed upon the spur-wheel q, the teeth by preference being formedin the manner shown in detail in Fig. 9 As will be noted upon referenceto said figure, the base of the tooth is made rectangular, so as toresist the stopping and setting motion, as the form allows force to beapplied in a forward as well as in a backward direction.

Mounted over the friction-disk '1" there is a plate 2, Figs. 4 and 9,provided with a series of openings A, into which may be in serted astop-pin B, Fig. 9. Said plate is held in its position by the shaft nand also by a bolt C, which passes down from the inwardly-projectingupper end of the column 8 through a slot or opening formed in the plate.The slot of course permits adjust ment of the plate as desired. Thecolumn 8 acts as an abutment for the stop-lever, and to prevent jar ofthe parts a cushion D is inserted in the face of the column, as bestshown in Fig. 9. The upper end of the shaft n is squared, so that shouldoccasion require or it be found advantageous so to do a handle or crankmay be applied thereto, whereby the operator may actuate the set-shaftdirect that is, manually to recede the works. To set the works manually,the same handle is applied to the squared or polygonal stud orprojection x, Figs. 3 and 4, on the short end of the stop-lever :0. Thisstud is also shown in Figs. 1, 2, 9, 13, and 14. In setting, therefore,the operator manipulates the locking-lever y on the stop-lever m withone hand and the detachable handle (not shown) applied to the stud atwith the other hand. He has, therefore, in effect, a double lever lockedto the shaft n by the locking-lever y on the stoplever engaging with thewheel g, keyed to the shaft 0%. Such double lever is needful because ofthe greater work required in setting. In receding manually the samedetachable handle (not shown) applied to the stud as during manualsetting is applied to the squared portion of the upper end of the shaftn, and this single handle suffices to enable the operator to rotate theshaft n to recede the works, there being little work required in thisoperation, as the works are running light without any load and thestop-lever being disengaged from the wheel g through the locking-levery. Such manual operation, however, is only necessary in case of thebreaking of either or both of the actuatingsprings S or X.

The operation of the mechanism thus far described is as follows: As thecarriage moves back and forth a continuous rotary motion in onedirection is imparted to the gear M through the gears H, I, K, and L andthe ICC gear B, which is actuated by the rack A.

held in close contact with the drum T, to which the spring S isconnected. By reason of the friction V being carried by the drum WV,which is splined to the shaft Q, said spring will tend to rotate theshaft and consequently move or actuate the set-shaft and the knees orset-works connected therewith. The movement of the set-shaft is,however, prevented by reason of the set-lever w being in contact withthe abutment, thus locking the gear 7c, and consequently the set-shaftZ, against movement. As the carriage moves back and forth the gear Bwill of course be actuated by the rack, and it is possible under certainconditions that the spring S would, unless provision were made, be woundup too tight and strain be placed upon the parts. It is to prevent thiscondition that the gear B is made in the manner describedthat is to say,is provided with means which permit its outer gear-ring to rotateindependently of the remaining portion thereof, so that no motion willbe imparted to the shaft G, and consequently no further tension placedupon the spring S. The paper friction V between the drums also serves asa means for relieving the parts from strain of momentum of drum T insuddenly arresting the setting motion. When it is desired to have theknees move forward, or, in other words, to set the log or timber, theoperator puts on the brake r and manipulates the handle y, bringing theset and stop lever 90 around to the position where the shaft a may whenreleased move the distance required to bring about the desired forwardmovement of the knees. When the lever is adjusted, the operator byreleasing the strap-brake through manipulation of the handles or leversw permits the spring S, through its connections with the drum W, shaftQ, pinion j, and gear k, to actuate the set-shaft. As the stop-levernears the cushion or abutment formed upon the column s the operator mayease down the motion by gently applying the strap-brake. Of course whenthe stop-lever 00 comes against the abutment further motion of thesetshaft is pre vented; but should the tension of the spring S be suchor the momentum of the parts he so great that there would be a tendencyto further movement of the drum T said drum may slide upon the frictionmember V, thus preventing strain on the mechanism. As the spring Sunwinds to actuate the setworks, and consequently rotates the shaft Q,the receding spring X will be wound up, and when it is desired to recedethe knees the operator by manipulating the lever or handle d withdrawsthe friction member V from its contact with the drum T and by the samemanipulation throws the pawl 9 into engagement with the teeth U upon thedrum T, thereby preventing the spring S from unwinding and freeing thedrum W from its connection with the drum T, whereby the spring X willrotate the shaft Q in such a direction as to rotate the shaft Zandirecede the knees. Such spring action is, however, not manual controlby means of the brake-strap r coacting with the friction-wheel p byactuating the handle 11).

In Figs. 13 and 14 is shown a construction wherein a stationary rope Eis passed about two sheaves F G, carried by suitable shafts mounted uponthe carriage, said shafts being provided at their inner ends H H withreversing-pawl pinion, such as shown in Figs. 7 and 8, which mesh withthe gear M and impart motion thereto, winding up or'putting the spring Sunder tension, as in the case of the construction above referred to. Thesetting mechanism and the operative parts thereof are the same as havebeen already described. Instead of employing a spring X to recede theknees a large helical spring I is mounted beneath the carriage, and achain extending from one end thereof passes around a pulley J, mountedupon the opposite end of the carriage, and in turn is connected to adrum K, mounted upon the shaft Q. As motion is imparted to the shaft Q,to set the knees through the agency of the spring S the chain will bewound up on the drum, placing the spring I under tension. When the kneeshave been set forward to their full distance, the spring will be undersuch degree of tension that when the operator locks the spring S againstfurther action and releases the shaft from its connection therewith saidspring I will rotate the shaft in the opposite direction, therebyreceding the knees.

' Fig. 15 shows a still further modification of the means employed forstoring up the power by the movement of the carriage requisite to theactuation of the setting and receding mechanism. In this figure it willbe noted that the rack is employed and a gear L is in mesh therewith.Upon the end of the shaft opposite that to which said gear is attachedis a bevel-pinion M, meshing with bevel-gears N N, said gears beingprovided with reversing-pawls, such as have been heretofore described.The gears N N are mounted upon a shaft O, to the outer end of which iskeyed a gear P, which in turn meshes with a gear Q, mounted upon asleeve R. To said sleeve is connected one end of a helical spring S, theopposite end of the spring being connected to a second sleeve T,carrying a gear U. For the purpose of properly supporting the spring andalso affording a suitable bearing for the sleeves a shaft or pipe Vextends through said sleeves and the spring. Gear U meshes with asimilar gear W, carried by shaft X, having secured to its opposite end abevel-gear Y. Said gear Y meshes with a similar gear Z, which isconnected to the shaft of the set-Works corresponding to the shaft Q.

The gearing thus described is designed to place the spring S undertension and to actuate the set-shaft, the controlling mechanism 'beingthe same as that shown and described in Figs. 1 to 12, inclusive. A druma. is in gear with the bevel-gear Y, and a chain 1) is connected to saiddrum and to a helical spring 0, which, as in Figs. 13 and 14, isemployed to recede the knees, the spring 0 being put under tensionduring the setting movements.

Said receiver communicates with a cylinder h through a pipe 9, which isconnected to the stationary hollow piston-rod of the cylinder. A rack iis formed or secured upon the upper face of the cylinder. The piston-rodand piston are fixtures, the cylinder moving thereon, the rack i meshingwith a gear mounted upon a shaft corresponding to shaft Q. The cylinderduring its longitudinal movement slides upon a steel plate or support j,said plate being screwed or otherwise secured to the floor of thecarriage.

Having thus described my invention,what I claim is 1. The combination ofa sawmill-carriage, a set-shaft on the carriage, a spring-motor on thecarriage, yielding connections lnt6I1Tl8 diate said motor and theset-shaft for rotating said shaft in a direction to effect setting, andmeans for disengaging said connections and restraining the motor againstunwinding movement.

2. The combination of a sawmill-carriage, a set-shaft thereon, aspring-motor thereon, yieldin connections intermediate said motor an theset-shaft, means for positively determining the degree of rotation ofsaid set-shaft and consequently the extent of the set, means fordisconnecting the set-shaft from said motor, means for holding the motoragainst further movement, and means for frictionally holding theset-shaft against retrograde movement.

- a spring-motor for operating the power-shaft for setting, meansincluding a friction mechanism for storing power in the spring motorfrom the motion of the carriage, a second spring-motor for operating thepower-shaft for receding, and means for interchangeably reversiblyoperating through one springmotor or the other.

5. The combination of a sawmill-carriage, a set-works thereon, aspring-operated reversible power -shaft, positive connections betweenthe power-shaft and the set-works, a spring-motor for operating thepower-shaft for setting, means including an adjustable frictionmechanism for storing power in the spring-motor from the motion of thecarriage, a drum on the power-shaft frictionally receiving power fromthe spring-motor, a second spring-motor coacting positively with thedrum for operating the power-shaft for receding, and means forinterchangeably reversibly operating through one spring-motor or theother.

6. In a sawmill set-works, a carriage, a set-shaft for operating kneeson the carriage, a column on the carriage, a shaft supported by thecolumn and geared to the said shaft, an arm swiveled on thecolumn-shaft, means including a handle on the longer end of the arm foradjustably locking the arm to the columnshaft, and similar means on boththe shorter end of the arm and on the column* shaft for interchangeableattachment of a handle.

7. In a sawmill set-works, a carriage, a set-shaft for operating kneeson the carriage, power means for operating the set-shaft, means fordisconnecting the power means from the set-shaft, a column on thecarriage, a shaft supported by the column and geared to the set-shaft,an arm swiveled on the column-shaft, means including a handle on thelonger end of the arm for adjustablylocking the arm to the column-shaft,and similar means on both the shorter end of the arm and on thecolumn-shaft for interchangeable attachment of a handle.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

WVILLIAM HENRY TROUT.

WVitnesses:

EDWARD KLAUSMAN, B. A. BRENNAN.

